The minute my divorce was final, I revoked my ex-mother-in-law’s Level 8 Pentagon clearance. At 4:30 AM, my ex-husband—a Navy Commander—showed up at my penthouse with a tactical team, setting explosives on my door. “My ex-wife is having a psychological break. Breach it!” he ordered. He thought I was a helpless, lonely civilian. When he saw who was waiting inside, he collapsed in screaming.

“What the hell are you doing?!” Rachel Mercer yelled. She was pacing frantically behind me, her eyes darting between the strobing monitors. She was a brilliant clearance attorney, but she wasn’t a cyber-architect. To her, the cascading walls of red code looked like the end of the world. “They’re going to breach the mainframe, Claire! They are framing you for a federal cyber-attack!”